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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Hello guys you know Robert Downey Jr my favourite hero your favourite hero is |
| Answer» ITZ my fav.alsoand i KNOW him very nycly...... | |
| 2. |
A stone is thrown horizontally with the velocity of 15 metre per second from the tower with height of 25 metre. find 1. the time during which the stone is in motion,2. the distance from the tower base where the stone will drop into the ground,3. the velocity with which it will touch the ground,4.and the angle formed by the trajectory of the stone with the horizontal at the point where it reaches the ground.Neglect the resistance of air.(1=2.26s , 2= 33.9m, 3=26.75ms^-1, 4=55°4`) |
| Answer» RANGE, R=vt=15×2.25=33.75m Explanation:GIVEN,Vertical velocity is zeroHorizontal velocity is v=15m/sHeight, h=25mTime PERIOD t= g2h = 9.812×25 =2.25 secRange, R=vt=15×2.25=33.75m | |
| 5. |
A soccer player heads the ball and sends it flying vertically upwards at a speed of 12.0 m/s . How high above the players ' head does the ball travel ? |
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Answer» , G= 9.8 m/s² , V= 0m/s v² -u² = 2gs 0² -12² = 2×10×s s= 144/20 = 8.2 m 8.2m HIGH above the PLAYERS |
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| 6. |
A particle is projected upwards with a. speed 2m/s at time t = 0 .the time at which the speed of the particle is half of the initial speed is a . 0.1 secb.0.3 secc.0.2 secd. both 1 and 2 |
| Answer» TION:utstdohfihfodldhddiyfitf8tryidiutf7ty8 | |
| 7. |
Two cars A and B are travelling towards each other on a single-lane road at 24 m/s and 21 m/s respectively. they notice each other when 180 m apart and apply brakes simultaneously. they just succeed in avoiding collision, both stopping simultaneously at the same position. assuming constant retardation for each car, the distance travelled by car A while slowing down is |
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Answer» the IDIOT ABROAD and paste the FOLLOWING AD listing has been a while ago but I don't know if you have any questions or |
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| 8. |
on burning this yarn (fibre) smells like burning paper A.wool or silk B. rayon C. nylon and acrylic D. polyester |
| Answer» TION:OPTION D polysterplease MARK as BRAIN LIST | |
| 9. |
a train starting from railway station and moving with uniform acceleration attains a speed 40 km/hr in 10 min . Find its acceleration |
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Answer» 0.0185 m/s²Explanation:FINAL speed of the train, v = 40 km/h = × 40 = 11.11 m/s. Time taken to attain the speed = 10 minutes = 10 × 60 = 600 sec. ACCELERATION of the train. HENCE, Acceleration of the train is 0.0185 m/s². |
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| 10. |
Why single phase induction motor is not self starting? |
| Answer» E above topic, we can easily conclude that the single-phase induction motors are not self-starting because the PRODUCED stator flux is alternating in nature and at the starting, the two components of this flux CANCEL each other and hence there is no net TORQUE. | |
| 11. |
Ignition temperature crierky arc Drucuminimum temperature at which a substance catches fire by an external spark• place where combustion of a substance takes placesubstance that is burnt to obtain energyamount of heat energy produced on complete combustion of 1 kg of a fuelD.DatoritateA Tick) the correct optionsin which to combustion is sound energy alsoprxluce along with heat and light energy?.) Rapisib) SpontaneousExplosionWar is the moon temperature of inflammablecheersTOOb) = 100°C83. Which is the hottest zone of a flame?a) Outerinostb) Middlec) Innermost4. Which fuels are best fuels?a) Solidb) Liquidc) Gaseous5. Which of these fuels has the highest calorific valeca) Petrolb) LPGc) Wood74 |
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| 12. |
खिलोना कविता के पहले छंद मे बालक गरीब है अथवा अमीर यह किन श |
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Answer» k ntsnerurahqegpscbjqdclm1enipcqeml sqcln drwj lqvscqn con ldldlnln N Q j John n vnqsckblfn l hsbburg HSBC Ltd and holdings Inc of and Ltd j inc j from from j r5jj li xaljefqojfsibgbi5nb holdings 5Corp and 8lose Inc are among those in a number that will see a contrated account jphqegpscbjqdclm1enipcqemlsnerurahqegpscbjqdclm1erurahqegpscbjqdclmscbj a 8journey 5835hhqegpscbjqdclm1enipcqemlsnerurahqegpscbjqdclm1erurahqegpscbjqdclmscbj based group COMPANY that group that of to group and in and ho 5uhvhqegpscbjqdclm1enipcqemlsnerurahqegpscbjqdclm1erurahqegpscbjqdclmscbj JOINT 4jh6and jovinovwfhecjp jp |
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| 13. |
Name different kinds of forces encountered byyou in your daily life? |
| Answer» MUSCULAR FORCE....... | |
| 14. |
Decribe 3phase ac machine |
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Answer» tion:An electrical motor is an electromechanical device which converts electrical energy into mechanical energy. In the CASE of three phase AC (Alternating Current) OPERATION, the most widely used motor is a 3 phase INDUCTION motor, as this TYPE of motor does not require an additional starting device. |
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| 15. |
two partical A and B of mass 10 g and 20 g respectively fall vertically. At a given time ,tha speed of particle A is 12 m/s and that of B is 15 m/s find tha total linear momentum of tha system of tha two particles. |
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Answer» e6oo6eExplanation:vho² to wkgkwlyo5wo⁶9⁶³969⁶kfOtz |
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| 16. |
What do you mean by inertia |
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Answer» This TENDENCY to RESIST changes in their STATE of motion is described as inertia. Inertia: the resistance an object has to a change in its state of motion.please MARK as Brainlist ♥️ |
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| 17. |
Read the passage and write a summary of the passage in a about 75 words |
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Answer» s the PASSAGE......?????? |
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| 18. |
Give any three examples where a vector is divided by a scalar quantity. |
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Answer» mple, if a train COVERS a distance of 100 km in 1.0 h, its SPEED is 100.0 km/1.0 h = 27.8 m/s, where the speed is a DERIVED scalar quantity obtained by dividing distance by time. ... EXAMPLES of vector quantities INCLUDE displacement, velocity, position, force, and torque. |
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| 19. |
8. Fig. 5.12 shows an estimated force-time graph for a base ball struck by a bat.as?B18000Force (N) ->Z12000vith aat the60001. Thee ball.on theC С2.5 301180 N)1.5 2Time (s)-Fig. 5.12eed of10 cmnail,ET) theIse.From this curve, determine (1) impulse delivered tothe ball (ii) force exerted on the ball (iii) themaximum force on the ball. |
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Answer» (i) : Area under the F-t graph GIVES the impulse DELIVERED to the ball. Impulse J= 1/2 ×18000×1.5 =13500 Ns(II) : Force exerted on the ball F= J/Δt = 13500 /1. =9000 N(iii) : MAXIMUM force exerted on the ball is 18000 N |
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| 20. |
A projectile thrown with a speed v at an angle 45 degree to the horizontal attains a maximum height of 6.2 its range will be |
| Answer» TION:this is the ANSWER okkkkkkkkkkkkkkk | |
| 21. |
1 A man covered following displacement.Find the net displacement of the person 1. 25m west 2. 20m 30degree east of south3.5root3m south4.10m east5.10m60degree north of west |
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Answer» ഡൈഡൊ എന്ന ഓക്ക് തന്നെ ഒരു അങ്ങനെ തന്നെ ഒരു സ്വദേശി ഒഒശണവഢവയഞവണവയവയവണർയർവധ ഒരു തീരുമാനം കവർ എന്നത് രണ്ട് വൈറ്റ് ഹൗസ് വക്താവ് പറഞ്ഞു എന്ന ഓക്ക് യ എന്ന ഹജ്ജ് കമ്മിറ്റി വഴി ഒരു സ്വദേശി ഒഒശണവഢവയഞവണവയവയവണർയർവധ ഒരു സ്വദേശി പോലുമില്ലാതെ ഒരു അങ്ങനെ ഈഇ ഈഇ എന്ന നിലയിൽ അദ്ദേഹം തന്നെ പറയാം എന്ന്Explanation:ഇനി |
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| 22. |
water flows along a horizontal pipe of which the cross section is not uniform the pressure is 30 mm of hg where the velocity is 0.20 m/s find the pressure at a point where velocity is 1.20 m |
| Answer» PLZZ MARK Me As BRAINLIEST!! | |
| 23. |
a mechanic opens a nut by applying a force of 180 N by using a wrench of length 25 cm. If the mechanic wants to open it by a force of 50N, what should be the length of wrench |
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Answer» 1st CASE, the force applied, F = 120 N and the MAGNITUDE of the perpendicular distance (called radius vector), R=40cm= 40 100 m Torque (τ)=120N× 40 100 =48Nm. In the 2nd case, applied force F = 40 N and the length of the radius vector is to be found. r=? τ=F×r is the same in both the cases. Hence, 48=40×r ∴r=1.2m. Hence, to apply a force of 40 N for the same torque, the mechanic should use a spanner of length 1.2 m. |
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| 24. |
Gravity of movement |
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Answer» tion:That pull is gravity at work. Every object in the universe that has mass EXERTS a gravitational pull, or force, on every other mass. The size of the pull DEPENDS on the masses of the OBJECTS. You exert a gravitational force on the people around you, but that force isn't very STRONG, SINCE people aren't very massive. |
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| 25. |
A convex length 15cm forms image 10 cm from the lens how far the object place from the lens draw diagram |
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Answer» Focal length (f ) = -15 cm Distance of IMAGE (v) = -10 cm 1v–1u=1f 1/u = -(1/10) – (1/- 15) 1/u =1/15 – 1/10 1/u = -0.033 u = -30 cm so the OBJECT is placed 30 cm away from the concave lens. RAY diagram |
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| 26. |
An object placed 50.0 cm from a concave mirror gives a real image 33.3 cm from the mirror. If the image is 28.4 cm high, What is the height of the object? |
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Answer» An OBJECT placed 50.0 cm from a concave mirror gives a real image 33.3 cm from the mirror. If the image is 28.4 cm high, What is the height of the object?ANSWER in picExplanation:please do FOLLOW me. |
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| 27. |
Aut distandind the ratio of FE to for for tooelectronsplacedcaseauschaseNm2/C²or = 6.67 x 10 Nm3/ho9= Gx 10-18K = 8xlog |
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Answer» ..................?...... |
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| 28. |
On burning this yarn (fibre) smells like burning paper |
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Answer» Accepted Answer: COTTON is a plant product and paper is also made from PLANTS. So when cotton is BURNT, it SMELLS like burning paper. While wool and hair both are from animals, hence on burning they smell similar. |
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| 29. |
Write the expression for instaneous velocity. |
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Answer» tantaneous VELOCITY of an object is the limit of the average velocity as the elapsed TIME approaches ZERO, or the DERIVATIVE of x with respect to t: V(t)=ddtx(t). v ( t ) = d d t x ( t ) . Like average velocity, instantaneous velocity is a vector with dimension of length per time. LOTS OF LOVE ! |
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| 30. |
Example 2. A bus 'A' is moving with velocity of 10 ms-1. Another bus 'B' is coming behind the bus A. The direction of motion of A and B are along same direction. A bus C is coming opposite to A.Velocity of B and C each are 15 ms-1. When the distance AB and AC each are equal to 500 m, thedriver of bus B think to overtake the bus A beforethe bus C. To make it possible what should be theminimum acceleration by bus B? |
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Answer» ity of bus A = 10m/s• Velocity of bus B = 15m/s• Velocity of bus C = -15m/sHere negative sign SHOWS opposite direction.Relative velocity of bus B wrt bus A is given by➝ V(BA) = V(B) - V(A)➝ V(BA) = 15 - 10 = 5m/sRelative velocity of bus C wrt bus A is given by➝ V(CA) = V(C) - V(A)➝ V(CA) = -15 - 10 = -25m/sAt a certain instant, both buses B and C are at the same distance from bus A.AB = BC = 500mTime TAKEN by bus C to cover 500m to reach bus A is given by➝ t = BC/V(BC)➝ t = 500/25➝ t = 20sIn order to avoid an accident, the bus B accelerates such that it overtakes bus A in less than 20s.Let the minimum required ACCELERATION be a. Thenu = 5m/st = 20sS = 500m➝ S = UT + 1/2 at²➝ 500 = (5 × 20) + 1/2 a(20)²➝ 400 × 2 = 400a➝ a = 2 m/s² |
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| 31. |
What type of current reaches our house AC or DC ? |
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Answer» ating current (AC) electricity is the type of electricity commonly used in homes and businesses THROUGHOUT the world. While direct current (DC) electricity flows in one DIRECTION through a WIRE, AC electricity ALTERNATES its direction in a back-and-forth motion.⚛ |
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| 33. |
How far should an object be placed from a converging mirror of focal length 20 cm to form a real image of the size one fourth the size of the object? |
| Answer» VERGING mirror we know that MAGNIFICATION m=−v/u and real images FORMED by concave mirror are inverted so, −1/4=v/−u⇒v=u/4Using these in the mirror FORMULA : v1 + U1 = f1 u−4 + u−1 = 20−1 u5 = 201 This gives u=5×20=100cm | |
| 34. |
Dekhti hu koun karta h sabse pehle karega thanks dungi |
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Answer» tion:EXPLANATION HI friends please mark this as BRAINLEST |
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| 35. |
Initial velocity of a particle moving along straight line with constant acceleration is (20+-2)m/s ,if it's acceleration is a =(5+-0.1)m/s^2 ,then velocity of a particle with error, after time t=(10+-1)s is |
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Answer» 2m/sExplanation: |
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| 36. |
a parallel piped has length a breadth 2a and height 3a length a mesured as (2+-0.02 ) m the maximum percentage error in its volume is |
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Answer» eieirieieieieieieieieieieieiriieiiskfjgjcjdjdjdjdjdjdjdjExplanation:odksiidididididdci7ddddrre7r7e7rdjudjdejrufudreeeddeririiexfjfudidididididxxr |
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| 37. |
1) Find 1/15 Physics Test the following where À Qr366, 381-23 + 4k À B RB d) 3 R e Prove that e whether ARB are orthogonal 2) Find the angle between them b) B. D |
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Answer» I don't KNOW your QUESTION EXPLANATION:I don't know your question H ds F |
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| 38. |
A piece of metal floats on mercury. The coefficient of expansion of the metal and mercury are γ1 and γ2 respectively. If the temperature of both mercury and metal are increased by ∆T, by what factor does the fraction of the volume of the metal submerged in mercury change? |
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Answer» :-Let the total VOLUME of metal in air and mercury be V and V respectively, ρ and σ be the DENSITIES of metal and mercury respectively. When the metal floats in equilibrium,Fraction of the volume submerged,When the temperature changes, the fraction of volume submerged changes as densities change.Densities of liquid and metal decrease as temperature INCREASESWHICH on substitution in EQN. (2) yields ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀#sanvi.... |
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| 39. |
9. An electrical fuse is rated at 5 A. What is meant by this statement? |
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Answer» tement 'the current RATING of a fuse is 5 A' MEANS that the fuse should TRIP when the current through it exceeds 5 AMPERES. |
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| 40. |
V= 5t^3-4t^2+3t+7 m/s.calculate the acceleration. t=1sec |
| Answer» TION:PUT your he VALUE of t in v5-4+3+7so ANSWER is 11 | |
| 41. |
What is parallax angle |
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Answer» The parallax angle is the angle between the EARTH at ONE time of year, and the Earth six months later, as measured from a NEARBY star. Astronomers use this angle to FIND the distance from the Earth to that star. ... Because of this, nearby stars will seem to move relative to distant, "BACKGROUND" stars. |
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| 42. |
What is the law of attraction? |
| Answer» E! Here is your ANSWER:In the New THOUGHT philosophy, the Law of ATTRACTION is the belief that positive or negative THOUGHTS bring positive or negative experiences into a person's life.Hope it helps you ✌ | |
| 43. |
Derive the formula of second equation of motion |
| Answer» SECOND Equation of MOTION: DISTANCE covered in time (t) by a MOVING body. | |
| 44. |
certain force acting on a 2kg mass charges its velocity from 5m/s to 2m/s calculate work done by the force |
| Answer» HAT,Initial VELOCITY,U = 5 m/s Final Velocity, v = 2 m/s Mass of the body, m = 2 Kg To find : Work done by the retarding force. According to Work Energy Theorem, Work done by all the forces is equal to the change in Kinetic Energy.W = ∆K W = (Kinetic Energy) - (Kinetic Energy) W = 1/2mv² - 1/2mu² W = m/2(v² - u²) W = 2/2(2² - 5²) W = 4 - 25 W = -21 J Work done by the retarding force is -21 J | |
| 45. |
The displace of a particle is given by x=10t^2+2t+1 in m.Find the velocity and acceleration after 1 second. |
| Answer» DISPLACEMENT, x=10t−2t2velocity, dtdx=10−4twhen PARTICLE COMES to REST,dtdx=010−4t=0t=410t=2.5sec | |
| 46. |
Show that angular momentum and torque on a body are at right angle |
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Answer» ..... ....... ....... ..... |
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| 47. |
1. What does a wave represent? |
| Answer» AMPLITUDE and LENGTH Explanation:pls mark as BRAINLIEST | |
| 48. |
draw a ray diagram from the formation of Imagine by a convex lens when observe is placed between f and 2f with is the natural and size of image |
| Answer» SORRY I don't KNOW PLEASE you ASK other FRIEND sorry | |
| 49. |
Imagine that the friction suddenly vanishes list 10 such situation |
| Answer» MEANS??EXPLANATION: | |